Question

What is the value of x?

Answer 1

The figure given is a heptagon,

The angle sum of a heptagon is 900°.

Therefore,

Sum of all angles of a heptagon = 900

`12 0 + 158 + 126 + 125 + 121 + 139 + x = 900`

`789 + x = 900`

`x = 900 - 789`

`x = 111`

Therefore,

x = 111°